The Samsung Galaxy Music Duos is an entry level handset like the Galaxy Star. The primary difference between the two, and as the name of this phone suggests, is the stereo speakers on the front face. The Galaxy Music Duos, other than that, is more or less the same as the Galaxy Star. It's got the 3.0-inch QVGA display, 512MB of RAM and 4GB of internal memory. While the Star ran on a 1GHz Cortex A5 based chip, the Music Duos runs on a 850 MHz Cortex A9 based one. It comes with Android 4.0 Ice Cream Sandwich out of the box, but has a planned update to 4.1. Another big difference, other than the dual loudspeakers, is 3G support with speeds of up to 7.2 Mbps. The battery is also slightly larger at 1300 mAh, but that might be necessary in order to provide enough juice to power those speakers. The word 'Duos' in its name also suggests that this is a dual-SIM phone. It is available in a single SIM variant too. Lastly, its got the usual WiFi and Bluetooth connectivity too.
Samsung Primo S5610 features a 2.4-inch display screen with a resolution of 240 x 320 pixels.The device has 110 MB internal memory which can be expanded up to 16 GB using a microSD card. The phone is powered by Li-Ion 1000 mAh battery that provides a talktime up to 15 hours on 2G and 5 hours in 3G. When fully charged the S5610 provides a standby time up to 960 hours on 2G and 680 hours on 3G.
S5610 is loaded with music player and FM radio. There is also an FM recording feature that allows you to record your favorite shows directly played on the air.
In terms of connectivity the S5610 from Samsung has features like 3G, GPRS, Bluetooth, USB port and EDGE. It features a 5MP autofocus rear camera and a 0.3 MP front camera. The camera comes equipped with a smile detection feature which adds quality to the image taken it.